Guardhouse Coin Capsule Storage Box is made of high quality, sturdy, glossy white chipboard and features interior slots that are velour textured to snugly hold your extra large coin capsules. This box is designed to hold (50) Air-Tite Brand Size “I” Ring Capsules that can hold coins ranging in size from 33mm to 40mm and will also hold Guardhouse Extra Large capsules, and other capsule brands including some similarly sized U.S. Mint capsules. It is a great way to safely store your collection of coins in extra large capsules including 1oz Silver Eagle, 1oz Silver or Copper Rounds, and Silver Dollar Coins. They can stack together nicely to fit personal storage needs.